(19)
(11) EP 0 212 865 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.10.1988 Bulletin 1988/40

(43) Date of publication A2:
04.03.1987 Bulletin 1987/10

(21) Application number: 86305735

(22) Date of filing: 25.07.1986
(84) Designated Contracting States:
CH DE FR GB LI SE

(30) Priority: 29.07.1985 US 759711

(71) Applicant: BELL & HOWELL COMPANY
 ()

(72) Inventors:
  • Vandersyde, Gary L.
     ()
  • Beatty, Paul
     ()

   


(54) Method and device for deflecting a sheet prior to feeding


(57) A carriage 22 having registration arms 160 resiliently cou- pied thereto is rotated toward a lowermost sheet of a stack stored in a hopper 200. The carriage 22 bears both a positive pressure-communicating port 54 and two bellows-type sucker cups 56A. 56B. Positive pressure fluid is applied through port 54 in a manner wnereby at least a portion of sheet 220 is attracted to a surface 52 in which port 54 lies. While positive pressure fluid is being applied, the carriage 22 is rotated away from the storage position of the sheet 220. thereby deflecting at least a portion of the sheet about a first axis 208 of the sheet 220. Negative pressure fluid is then applied through sucker cups 56A, 568 to attract the deflected sheet 220 onto the sucker cups 56A 56B, thereby deflecting the sheet about the surface 52 anc tnus about a second axis 230 of the sheet. The carriage 22 is -dated further away from the storage position of the sheet 220 hereby further deflecting the sheet 220 about its first axis 208.







Search report